Escape from Delirium

Jewel case backside
When en old corpse is found in an abandoned section of the subway, you are sent to investigate the matter. Unfortunately the rope lowering your breaks, leaving you by yourself in the tunnel. In finding a way out you stumble into the monitor room for the city museum and witness a burglary. The burglars steal a stone tablet and disappear with it. Why they would want it is anyone's guess, but they do and they're willing to kill for it. As the only witness to the crime you are sent to convict the criminals, but a (freak?) accident causes you to crash land on a deserted island, or is it? You must use all your witts to get off this island and Escape from Delirium!